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a boy P stands on top of tower.another boy Q throws a ball vertically up from the ground so that it just reaches P & time taken is t 0 ..the speed with which the ball must be thown so that it reaches ground in time t 0 /2 is

a boy P stands on top of tower.another boy Q throws a ball vertically up from the ground so that it just reaches P & time taken is t0..the speed with which the ball must be thown so that it reaches ground in time t0/2 is

Grade:11

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